hash-cd: Print digest to the default printer w/ 62x29mm PageSize

Author: flihp

script/hash-cd

@@ -46,3 +46,9 @@ HASH=$(
         | head -c -1
 )
 info "CD in \"$CD_DEV\" has sha256 digest:\n$HASH"
+
+if lpstat -p ql-600 > /dev/null; then
+    lp -o PageSize=62x29mm <<< "$HASH" > /dev/null
+else
+    info "no printer found, the digest must be transcribed manually"
+fi